作者：龍飛
注意事項：1、times.ttf文件請到C:\WINDOWS\Fonts下尋找并拷貝到資源目錄下。
2、如果您使用VC2008，請用Release編譯。原因是，似乎涉及到vector的操作，Runtime Library在debug的時候必須用Multi-theaded Debug DLL (MDd)，而Release時候才用Multi-theaded DLL (MD)。而我們親愛的SDL必須始終用MD，所以，請Release吧。
這是一個檢驗TextSurface構造函數和析構函數的好例子。我們每一次的鼠標移動，都會導致一個新的TextSurface對象被建立，然后很快的又消亡。
源代碼：
//UVi Soft (2008)
//Long Fei (lf426), E-mail: zbln426@163.com
#include "SurfaceClass.h"
#include "int_to_string.h"
int game(int argc, char* argv[]);
int main(int argc ,char* argv[])
{
int mainRtn = 0;
try {
mainRtn = game(argc, argv);
}
catch ( const ErrorInfo& info ) {
info.show();
return -1;
}
return mainRtn;
}
int game(int argc ,char* argv[])
{
//Create a SDL screen.
const int SCREEN_WIDTH = 640;
const int SCREEN_HEIGHT = 480;
const std::string WINDOW_NAME = "Mouse Motion";
ScreenSurface screen(SCREEN_WIDTH, SCREEN_HEIGHT, WINDOW_NAME);
//Fill background.(default is black)
screen.fillColor();
screen.flip();
//Main loop.Press ESC or click X to quit.
bool gameOver = false;
SDL_Event gameEvent;
int x;
int y;
while( gameOver == false ){
while ( SDL_PollEvent(&gameEvent) != 0 ){
if ( gameEvent.type == SDL_MOUSEMOTION ) {
x = gameEvent.motion.x;
y = gameEvent.motion.y;
std::string mouse_at = "Mouse at: ";
mouse_at += ("x = " + int_to_string(x) + "; y = " + int_to_string(y) + ";");
TextSurface text("text", mouse_at, screen);
screen.fillColor();
text.blit();
screen.flip();
}
if ( gameEvent.type == SDL_QUIT ){
gameOver = true;
}
if ( gameEvent.type == SDL_KEYUP ){
if ( gameEvent.key.keysym.sym == SDLK_ESCAPE ){
gameOver = true;
}
}
}
}
return 0;
}
posted on 2008-03-26 21:20
lf426 閱讀(1650)
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SDL入門教程